function a(){
function b(){
    function c(){

    }
    c()
}
b()
}
a()

a defined a.[[scope]]-->0: GO{}
a doing   a.[[scope]]-->0: aAO{}
                     -->1: GO{}

b defined  b.[[scope]]-->0: aAO{}
                      -->1: GO{}
b doing    b.[[scope]]-->0: bAO{}
                       -->1: aAO{}
                       -->1: GO{}

c define  c.[[scope]]-->0: bAO{}
                     -->1: aAO{}
                     -->2: GO{}

c doing   c.[[scope]]-->0: cAO{}
                     -->1: bAO{}
                     -->2: aAO{}
                     -->3: GO{}